A Jaguar MK2 accelerator control pedal shaft lever split collar C13537 (item 19 in the illustration) its in ok used condition and it might be useful as a spare or if you are short of one for a rebuild project.

It fits a number of other Jaguar models such as the Daimler V8, 420, MK1 and S Type  but obviously check compatibility before committing to purchase.

The part is about 60 years old and does have some age related surface blemishes but its a usable original part.